19 September 2013, 8:51 am AESTUpdated: 8 May 2014, 9:30 am AESTPhoto by: Apple's iOS mobile operating system is now almost 7 years old, and it continues to evolve every few months. With WWDC just a month away, here's a look back at the major releases since iOS 3 and the biggest features that each update introduced. Editors' note: This gallery was updated May 7, 2014.
/ Caption by:Jason Parker, Kent German